CN105804267B - A kind of multidimensional seismic isolation device - Google Patents
A kind of multidimensional seismic isolation device Download PDFInfo
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- CN105804267B CN105804267B CN201610381540.8A CN201610381540A CN105804267B CN 105804267 B CN105804267 B CN 105804267B CN 201610381540 A CN201610381540 A CN 201610381540A CN 105804267 B CN105804267 B CN 105804267B
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- 238000002955 isolation Methods 0.000 title description 12
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 description 10
- 238000013016 damping Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
本发明公开了一种多维减隔震装置，包括底座、工作缸、第一弹簧、质量块、第二弹簧、环形容器、液体、连接杆、活塞、和顶盖，工作缸为桶形，工作缸通过第一弹簧设置在底座上，质量块设置在工作缸内，顶盖设置在质量块的顶部，环形容器套在质量块的外侧，环形容器内设有液体，活塞上设置有通孔，活塞设置在环形容器中，连接杆的两端分别连接顶盖和活塞。本发明的多维减隔震装置能同时进行水平向、竖向和扭转的减震，该装置具有优越的耗能能力和减隔震效果；本发明的多维减隔震装置结构简单、制作方便，可广泛用于高层建筑、大跨结构、桥梁结构等土木工程结构的抗风和抗震工程中，也可应用到机械、航空领域的减振中。
The invention discloses a multi-dimensional shock-absorbing and isolating device, which comprises a base, a working cylinder, a first spring, a mass block, a second spring, an annular container, a liquid, a connecting rod, a piston, and a top cover. The working cylinder is barrel-shaped, and the working The cylinder is set on the base through the first spring, the mass block is set in the working cylinder, the top cover is set on the top of the mass block, the annular container is set on the outside of the mass block, the liquid is arranged in the annular container, and the piston is provided with a through hole. The piston is arranged in the annular container, and the two ends of the connecting rod are respectively connected to the top cover and the piston. The multi-dimensional shock-absorbing and isolating device of the present invention can perform horizontal, vertical and torsional shock-absorbing at the same time, and the device has superior energy dissipation capacity and shock-reducing and isolating effects; the multi-dimensional shock-reducing and isolating device of the present invention is simple in structure and easy to manufacture. It can be widely used in wind resistance and earthquake resistance engineering of civil engineering structures such as high-rise buildings, long-span structures, and bridge structures, and can also be applied to vibration reduction in the fields of machinery and aviation.
Description
技术领域technical field
本发明属于土木、机械和航空领域的减隔震领域，涉及一种多维减隔震装置。The invention belongs to the field of vibration reduction and isolation in the fields of civil engineering, machinery and aviation, and relates to a multi-dimensional vibration reduction and isolation device.
背景技术Background technique
随着国家的发展、生活水平的提高，高层建筑、高耸结构、大跨结构等重要性结构与日俱增。在动力荷载（如强风和地震）作用下，这些结构会产生比较大的振动，影响到结构的正常使用及安全，如何减小结构的风振或地震反应是一个前沿且重要的课题。结构振动控制是一种新型的抗震措施，它是通过在结构中设置减震或隔震装置来消耗或隔离震动能量，或者施加外部的能量以抵消外部激励对结构的作用。目前针对振动控制装置的研发多集中于被动减震装置，这些装置具有构造相对简单，无需人工干预的优点，调谐质量阻尼器（TMD）是一类应用广泛的被动减震装置。With the development of the country and the improvement of living standards, important structures such as high-rise buildings, high-rise structures, and long-span structures are increasing day by day. Under the action of dynamic loads (such as strong wind and earthquake), these structures will generate relatively large vibrations, which will affect the normal use and safety of the structure. How to reduce the wind vibration or earthquake response of the structure is a frontier and important topic. Structural vibration control is a new type of anti-seismic measure, which consumes or isolates vibration energy by setting shock absorption or isolation devices in the structure, or applies external energy to offset the effect of external excitation on the structure. At present, the research and development of vibration control devices are mostly focused on passive shock absorbers. These devices have the advantages of relatively simple structure and no need for manual intervention. Tuned mass dampers (TMDs) are a type of passive shock absorbers that are widely used.
现有的调谐质量阻尼器（TMD）都是对单一方向的震动进行控制，但实际工程中震动通常是多个方向的。例如地震作用，通常的TMD只是对其水平向地震反应进行控制，然而地震震害现象表明，在高烈度地震区，地震动竖向分量对建筑破坏状态和破坏程度的影响十分明显；再如航空领域，如果飞行器的扭转振动不能控制，那么飞行器很容易在运行中失去稳定。而这些问题，都不是一个仅对单一方向震动进行控制的TMD所能够解决的。另外，目前的TMD大多未考虑耗能和阻尼，较低的阻尼系数在一定程度上限制了TMD的应用发展。Existing tuned mass dampers (TMDs) control vibrations in a single direction, but vibrations in practical engineering usually have multiple directions. For example, the earthquake action, the usual TMD only controls its horizontal seismic response, but the earthquake damage phenomenon shows that in the high-intensity earthquake area, the vertical component of the earthquake motion has a significant impact on the damage state and degree of the building; another example is aviation In the field, if the torsional vibration of the aircraft cannot be controlled, the aircraft will easily lose stability during operation. And these problems cannot be solved by a TMD that only controls vibration in a single direction. In addition, most of the current TMDs do not consider energy consumption and damping, and the low damping coefficient limits the application and development of TMDs to a certain extent.
因此，需要一种多维减隔震的装置以解决上述问题。Therefore, a multi-dimensional shock-absorbing and isolating device is needed to solve the above-mentioned problems.
发明内容Contents of the invention
发明目的：为了克服现有技术存在的问题，本发明提供一种能够实现多方向减隔震的多维减隔震装置。Purpose of the invention: In order to overcome the problems existing in the prior art, the present invention provides a multi-dimensional vibration reduction and isolation device capable of realizing multi-directional vibration reduction and isolation.
为解决上述技术问题，本发明的多维减隔震装置所采用的技术方案为：In order to solve the above-mentioned technical problems, the technical solution adopted by the multi-dimensional shock-absorbing and isolating device of the present invention is:
一种多维减隔震装置，包括底座、工作缸、第一弹簧、质量块、第二弹簧、环形容器、液体、连接杆、活塞、和顶盖，所述工作缸为桶形，所述工作缸通过所述第一弹簧设置在所述底座上，所述质量块设置在所述工作缸内，所述顶盖设置在所述质量块的顶部，所述环形容器套在所述质量块的外侧，所述环形容器内设有所述液体，所述活塞上设置有通孔，所述活塞设置在所述环形容器中，所述连接杆的两端分别连接顶盖和活塞。A multi-dimensional shock-absorbing and isolating device, comprising a base, a working cylinder, a first spring, a mass block, a second spring, an annular container, a liquid, a connecting rod, a piston, and a top cover, the working cylinder is barrel-shaped, and the working The cylinder is set on the base through the first spring, the mass block is set in the working cylinder, the top cover is set on the top of the mass block, and the annular container is sleeved on the mass block On the outside, the liquid is arranged in the annular container, the piston is provided with a through hole, the piston is arranged in the annular container, and the two ends of the connecting rod are respectively connected to the top cover and the piston.
更进一步的，所述液体为高粘度液体。保证装置竖向运动的阻尼。Furthermore, the liquid is a high viscosity liquid. Ensures damping of vertical movement of the device.
更进一步的，所述工作缸、质量块和环形容器的中轴线重合。Furthermore, the central axes of the working cylinder, the mass block and the annular container are coincident.
更进一步的，所述通孔为椭圆形。经测试，椭圆形通孔的阻尼效果更好。Furthermore, the through hole is oval. After testing, the damping effect of the elliptical through hole is better.
更进一步的，所述通孔的数量为多个。活塞带有多个通孔，可以增大连接杆搅动液体的阻力，保证装置竖向运动的阻尼，根据竖向运动需要的阻尼力，可以调整液体的浓度和活塞上通孔的大小。Furthermore, there are multiple through holes. The piston has multiple through holes, which can increase the resistance of the connecting rod to stir the liquid and ensure the damping of the vertical movement of the device. According to the damping force required for the vertical movement, the concentration of the liquid and the size of the through hole on the piston can be adjusted.
更进一步的，所述环形容器内设置有密封橡胶圈。用来保证高粘度液体的密封性。Furthermore, a sealing rubber ring is arranged inside the annular container. Used to ensure the tightness of high-viscosity liquids.
有益效果：本发明的多维减隔震装置能同时进行水平向、竖向和扭转的减震，该装置具有优越的耗能能力和减隔震效果；本发明的多维减隔震装置结构简单、制作方便，可广泛用于高层建筑、大跨结构、桥梁结构等土木工程结构的抗风和抗震工程中，也可应用到机械、航空领域的减振中。Beneficial effects: the multi-dimensional shock-absorbing and isolating device of the present invention can perform horizontal, vertical and torsional shock-absorbing at the same time, and the device has superior energy dissipation capacity and shock-absorbing and isolating effect; the multi-dimensional shock-absorbing and isolating device of the present invention is simple in structure, It is easy to manufacture, and can be widely used in wind and earthquake resistance engineering of civil engineering structures such as high-rise buildings, long-span structures, and bridge structures, and can also be applied to vibration reduction in the fields of machinery and aviation.
附图说明Description of drawings
图1为本发明多维减隔震装置的结构示意图。Fig. 1 is a structural schematic diagram of the multi-dimensional shock absorbing and isolating device of the present invention.
具体实施方式Detailed ways
请参阅图1所示，本发明的多维减隔震装置，包括底座10以及通过第一弹簧2连接在底座10上的工作缸1，工作缸1为顶部开口的空心钢筒，工作缸1内设有环形容器5和质量块3。优选的，工作缸1、环形容器5和质量块3的中心轴线重合。环形容器5套设在质量块3外，环形容器5固定在工作缸1的内侧壁上，质量块3通过第二弹簧4连接在工作缸1的底板上，保证装置竖向运动的刚度。通过改变第二弹簧4的规格和数量可以调节装置竖向运动的刚度，环形容器5中有液体6，其中，液体6为高粘度液体，质量块3为实心钢筒，质量块3的顶部焊接有圆形顶盖12，顶盖12焊接连接杆8，连接杆8末端焊接活塞9，连接杆8伸入环形容器5的液体6中。连接杆8与环形容器5的接触处设有密封橡胶圈，用来保证液体6的密封性。活塞9是带有多个椭圆形孔洞的圆盘，可以增大连接杆8搅动液体6的阻力，保证装置竖向运动的阻尼，根据竖向运动需要的阻尼力，可以调整液体6的浓度和活塞9上孔洞的大小。See also shown in Fig. 1, the multi-dimensional shock absorbing and isolating device of the present invention, comprises base 10 and the working cylinder 1 that is connected on the base 10 by the first spring 2, and working cylinder 1 is the hollow steel cylinder of top opening, and working cylinder 1 An annular container 5 and a mass block 3 are provided. Preferably, the central axes of the working cylinder 1 , the annular container 5 and the mass block 3 are coincident. The annular container 5 is sleeved outside the mass block 3, and the annular container 5 is fixed on the inner side wall of the working cylinder 1. The mass block 3 is connected to the bottom plate of the working cylinder 1 through the second spring 4 to ensure the rigidity of the vertical movement of the device. The stiffness of the vertical movement of the device can be adjusted by changing the specification and quantity of the second spring 4. There is a liquid 6 in the annular container 5, wherein the liquid 6 is a high-viscosity liquid, the mass block 3 is a solid steel cylinder, and the top of the mass block 3 is welded There is a circular top cover 12, the top cover 12 welds the connecting rod 8, the end of the connecting rod 8 welds the piston 9, and the connecting rod 8 stretches in the liquid 6 of the annular container 5. A sealing rubber ring is provided at the contact between the connecting rod 8 and the annular container 5 to ensure the tightness of the liquid 6 . The piston 9 is a disc with a plurality of elliptical holes, which can increase the resistance of the connecting rod 8 to stir the liquid 6 and ensure the damping of the vertical movement of the device. According to the damping force required for the vertical movement, the concentration and concentration of the liquid 6 can be adjusted. The size of the hole on the piston 9.
本发明的多维减隔震装置能同时进行水平向减隔震、竖向减隔震和扭转减隔震。水平向减隔震主要通过工作缸1及其内部所有部件、第一弹簧2和底座10实现，当装置受到水平向减震动激励时，工作缸1及其内部所有部件会产生和被控结构相反方向的运动，同时通过第一弹簧2的剪切变形耗散掉震动能量。竖向减隔震主要通过质量块3、第二弹簧4、液体6、连接杆8和活塞9实现，质量块3、连接杆8和活塞9通过焊接成为一个整体，再通过第二弹簧4与工作缸1底部连接，当装置受到竖向减震动激励时，质量块3会产生和竖向振动方向相反的运动，同时带动连接杆8和活塞9上下搅动液体6，活塞9是带有四个椭圆形孔洞的圆盘，活塞9可以增大连接杆8上下搅动液体6的阻力，提高竖向运动的阻尼，增加耗能。扭转减震主要通过环形容器5和液体6实现，三者形成一个环向调谐液体阻尼器，当装置受到扭转震动激励时，通过液体6的晃动来消耗结构的扭转振动能量。The multi-dimensional vibration reduction and isolation device of the invention can simultaneously perform horizontal vibration reduction and isolation, vertical vibration reduction and isolation and torsional vibration reduction and isolation. The horizontal shock absorption and isolation is mainly realized through the working cylinder 1 and all its internal parts, the first spring 2 and the base 10. When the device is excited by the horizontal shock absorption, the working cylinder 1 and all its internal parts will produce and control the structure The movement in the opposite direction dissipates the shock energy through the shear deformation of the first spring 2 at the same time. The vertical shock absorption and isolation is mainly realized through the mass block 3, the second spring 4, the liquid 6, the connecting rod 8 and the piston 9. The mass block 3, the connecting rod 8 and the piston 9 are welded into a whole, and then the second spring 4 and the The bottom of the working cylinder 1 is connected. When the device is excited by vertical vibration reduction, the mass block 3 will move in the opposite direction to the vertical vibration direction, and at the same time drive the connecting rod 8 and the piston 9 to stir the liquid 6 up and down. The piston 9 is equipped with four A disc with an oval hole, the piston 9 can increase the resistance of the connecting rod 8 to stir the liquid 6 up and down, improve the damping of the vertical movement, and increase energy consumption. The torsional shock absorption is mainly realized by the annular container 5 and the liquid 6, and the three form a ring-tuned liquid damper. When the device is excited by torsional vibration, the torsional vibration energy of the structure is consumed by the sloshing of the liquid 6.
Claims (6)
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| CN109147231A (en) * | 2018-08-29 | 2019-01-04 | 合肥浮点信息科技有限公司 | A kind of combustion gas self-help charger being readily transported |
| CN112854472B (en) * | 2021-01-20 | 2022-07-01 | 重庆三峡学院 | Fully assembled concrete joint device with replaceable shock isolation device |
| CN114809765B (en) * | 2022-04-18 | 2023-01-31 | 清华大学 | Tuned liquid column damper and tower with adjustable liquid level |
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| JP5015647B2 (en) * | 2007-04-02 | 2012-08-29 | 株式会社竹中工務店 | Vibration control device |
| CN100455763C (en) * | 2007-05-30 | 2009-01-28 | 北京工业大学 | Friction-spring three-dimensional composite shock-isolation bearing |
| CN100570087C (en) * | 2007-06-08 | 2009-12-16 | 东南大学 | Large-deformation large-tonnage composite viscoelasticity damper |
| CN202954452U (en) * | 2012-12-13 | 2013-05-29 | 中国矿业大学 | Novel seismic device |
| CN104594520B (en) * | 2015-01-13 | 2017-01-18 | 山东大学 | Multi-dimensional adjustable collision energy dissipation device |
| CN204491888U (en) * | 2015-03-19 | 2015-07-22 | 河南城建学院 | A kind of three-dimensional shock-absorption quality tuned damper |
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